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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1825 (Windows And Glass - F-150 & Mark LT) >> Diagnostic Tests >> Glass, Frames and Mechanisms >> Pinpoint Tests >> Pinpoint Test A: All Power Windows are Inoperative >> Pinpoint Test A: All Power Windows Are Inoperative

Pinpoint Test A: All Power Windows Are Inoperative

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. A1 CHECK THE VOLTAGE TO THE DRIVER WINDOW CONTROL SWITCH - CIRCUIT 400 (LB/BK) 
    • Disconnect: Driver Window Control Switch C535 (regular cab) or C504b (SuperCab or SuperCrew)
    • Key in ON position.
    • For regular cab, measure the voltage between driver window control switch C535-1, circuit 400 (LB/BK) harness side and ground.
      Fig 1: Checking Voltage To Driver Window Control Switch -- Circuit 400 (LB/BK) (1 Of 2)
      GF0001936Courtesy of FORD MOTOR CO.
    • For SuperCab or SuperCrew, measure the voltage between driver window control switch C504b-8, circuit 400 (LB/BK) harness side and ground.
      Fig 2: Checking Voltage To Driver Window Control Switch -- Circuit 400 (LB/BK) (2 Of 2)
      GF0001937Courtesy of FORD MOTOR CO.
    • Are the voltages greater than 10 volts? 
    1. YES  : Go to  A2.
    2. NO  : VERIFY the CJB circuit breaker 401 (30A) is OK. If OK, go to  A3.
  2. A2 CHECK THE GROUND TO THE DRIVER WINDOW CONTROL SWITCH - CIRCUIT 57 (BK) 
    • Key in OFF position.
    • For regular cab, measure the resistance between driver window control switch C535-3, circuit 57 (BK) harness side and ground.
      Fig 3: Checking Ground To Driver Window Control Switch -- Circuit 57 (BK) (1 Of 2)
      GF0001938Courtesy of FORD MOTOR CO.
    • For SuperCab or SuperCrew, measure the resistance between driver window control switch C504b-5, circuit 57 (BK) harness side and ground.
      Fig 4: Checking Ground To Driver Window Control Switch -- Circuit 57 (BK) (2 Of 2)
      GF0001939Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. YES  : INSTALL a new driver window control switch. REFER to Window Control Switch - Front  in this article. TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  3. A3 CHECK THE ACCESSORY DELAY RELAY  
    • Key in OFF position.
    • Disconnect: Accessory Delay Relay
    • Carry out the Accessory Delay Relay Component Test. Refer to COMPONENT TESTING.
    • Is the accessory delay relay OK? 
    1. YES  : Go to  A4.
    2. NO  : INSTALL a new accessory delay relay. TEST the system for normal operation.
  4. A4 CHECK THE POWER TO THE ACCESSORY DELAY RELAY 
    • Key in ON position.
    • Measure the voltage between accessory delay relay socket pin 86 and pin 30 harness side and ground.
      Fig 5: Checking Power to Accessory Delay Relay
      GF0001940Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A5.
    2. NO  : REPAIR the power supply circuit or CJB. TEST the system for normal operation.
  5. A5 CHECK CIRCUIT 400 (LB/BK) FOR AN OPEN 
    • Key in OFF position.
    • For regular cab vehicles, measure the resistance between driver window control switch C535-1, circuit 400 (LB/BK) and accessory delay relay socket pin 87, circuit 400 (LB/BK) harness side.
      Fig 6: Checking Circuit 400 (LB/BK) For Open (1 Of 2)
      GF0001941Courtesy of FORD MOTOR CO.
    • For SuperCab or SuperCrew vehicles, measure the resistance between driver window control switch C504b-8, circuit 400 (LB/BK) and accessory delay relay socket pin 87, circuit 400 (LB/BK) harness side.
      Fig 7: Checking Circuit 400 (LB/BK) For Open (2 Of 2)
      GF0001942Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  A6.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  6. A6 CHECK CIRCUIT 1332 (LB) FOR AN OPEN 
    • Disconnect: IC C220b
    • Measure the resistance between accessory delay relay socket pin 85 and IC C220b-5, circuit 1332 (LB).
      Fig 8: Checking Circuit 1332 (LB) For Open
      GF0001943Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new IC. REFER to INSTRUMENT CLUSTER article. TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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